PRIMUSr 1000 Integrated Avionics System
A28--1146--112--00
Electronic Flight Instrument System (EFIS)
4-50
Each 1000-- and 500--foot altitude increment is enhanced,
respectively, with a double or single chevron shape. This shape,
along with the shape of the altimeter reference line and altitude
select bug, are designed to align when the selected and current
altitudes are on an increment of 1000 or 500 feet.
D Altitude Reference Line -- The reference lineis at the center point
of the altitude display. The rollingdigit display readout to the right of
the reference line is the current altitude. The reference line is also
the 0 point for the altitude trend vector.
D Altitude Trend Vector -- The altitude trend vector originates at the
altitude reference line. The trend vector is a magenta thermometer
shape that corresponds to altitude increase or decrease rate and
moves along the left side of the altitude tape. The tip of the vector
indicates the altitude that will be reached, at the present rate, in six
seconds. Altitude rate is output from the MADC.
D AltitudeSelectBug--Thecyanaltitudeselectbugtravelsalongthe
left side of the altitude tape. The altitude select bug is notched to fit
the 1000 or 500 foot altitude tape chevron format. The bug is
displayed on the scale across from the altitude value set in the
altitude alert select display. If the bug ismoved off the current scale
range, half of the bug remains on the scale to indicate the direction
to the set bug.
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